crotalus viridis

English Thesaurus

1. widely distributed between the Mississippi and the Rockies (noun.animal)

hypernym	:	rattler, rattlesnake,
definition	:	pit viper with horny segments at the end of the tail that rattle when shaken (noun.animal)

member meronym	:	crotalus, genus crotalus,
definition	:	large rattlesnakes; seldom bite unless startled or pursuing prey (noun.animal)